Smash preventer



E. E. LAMBERT SMASH PREVENTER Nov. 1, 1927.

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E. E. LAMBERT SMASH PREVENTER Filed May 23, 1925 3 Sheets-Sheet 3 Patented Nov. 1, 1927.

a; D STATES PATENT OF-Fl ERNEST LAMBERT, or INDIAN ORCHARD, MASSACHUSETTS.

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Application filed May 23, 1925.; Serial No. 32,421.-

This invention relates; tosmashpreventers for looms, and has for one of its objects the provision of adevice of this character which shall be adapted to efi'ect the hanging off of. the loom whenever the respective shuttle boxes simultaneously contain a shuttle.

A further object of the invention isthev 1 .ing any alterations in these or other parts of the loom. y I

The foregoing and other objects are attained by the construction,combination and arrangement of parts hereinafter fully 'described and claimed, and illustrated in the accompanying drawings, wherein Figure 1 is a view partly in elevation and partly in vertical section illustrating the application of the smash preventer to the breast beam and lay of a loom, Figure 2 is an elevational view of the lay andxthose parts of the smashpreventer carried thereby, p,

Figure 3-,is a bottom plan .view ofthe parts shown in Figure 2, Figure 4 is a sectional view taken on the vertical plane indicated by the line H of Figure 2, i

Figure 5 is a top plan view of a. fragmentary portion of the breast beam and brake shaft and brake shaft operating means, Figure 6'is an elevational view of the parts shown in Figure 5,

Figure 7 is a detail sectional view taken on the vertical plane indicated by the line 7+7 of Figure 1, and t Figure 8 is a similar view taken on the vertical plane indicated by. the line 88 of Figure 1. i 1

Corresponding and like parts arereferred to in the following description, and designated in the several views of theaccompanying drawings, by similar reference characters.

In'the drawings 1 designates the breast beam, 2 the lay and 3 the shuttle boxes of a loom. The rear walls and swells or binders of the shuttle boxes 3 are designated 4 and 5, respectively. As these parts are of well the lay known construction a further description thereof is deemedunnecessary. c

In accordance with my invention, a shaft 6 forming a part of the brake mechanismof the loom, is supported from the breastbeam 'l by bearing brackets 7. An arm 8 extending in a rearward direction therefrom, is sccured to the shaft 6 by a set screw 9 and has an arcuate rear end portion 8, A spring 10 exerting a constant upward'pull 011 the arm 8, is secured as at 11 to the breastjbeam 1 and as at 12 t0 the arm. Abracket 13having a rearwardly extending horizontaljmem ber 13 'and a vertical member 13, issecured to the breast beam 1 for vertlcal adjustment,

with respect thereto by screws 14 engaging the breast beam and passingthrough vertical w yslots 13 in the bracket member lg f-A:

vertically disposed curved lever 15 is connected at its lower end to the bracket member, 13 for movement about a horizontal axis 16, and is provided intermediate its ends with a horizontally disposed roller 17. contacting with the upper convex edge of the forward curved end portion 8 of the lever 8i.

The upper or free end of the lever 15 con- 1 tacts with a stop 18 carried, by a plate 19 which is connected to-the bracket member 13? a for adjustment forwardly and rearwardly with respect thereto by means of a screw 20 engaging the bracket member and passing through a slot 21 in the plate.

The parts of the smash preventer fore described normally occupy the relative positions in which they are shown in Figure 1, and they are yieldingly held in their normal positions by the spring 10. When the lever 15 is actuated in a downward and rear ward direction it will, due to the connection established between it and the shaft 6 by the arm 8 and roller 17, rock the shaft in a direction to apply the'brake of the loom with the resulting banging off of the loom. When the lever 15is released, the spring 10 will return the shaft 6, arm 8 and lever 15 to their. normalpositions with the consequent provided with a verticalibore 30 for the re.-.

ception of a rod 31 and its stem 32. The

upper end portion of the bore is reduced to provide a shoulder 33. The rod 31 is thus mountedfor vertical movement, the downward'movement thereof being limited by nuts 34 threaded on the stem 32 and contacting with the upper end of the boss 29. A spring 35 mounted on the stem 32 between the upper end of the rod '31 and the shoulder 33 normally holds the rod 31 in its lowermost or depressed position against casual movement. The rod 31 is pivotally connected as at- 31 to the rear end of the lever 22, and clue thereto this lever is nor -mally held in a substantially horizontal position in which position of the lever a hook 36 secured to the forward end thereof by a set screw 37 is supported out of-the path of the free end of the lever 15'.

oted intermediate its ends to the rod 31 by a pin 39. The ends ofthe bar 38- pass through vertical slots 40 in guides 41 securedto and depending from the bracket member 27. Stub shafts 12 are connected to the front side of the lay 2 by hearing brackets 4.3. Downwardly and rearwardly extending arms 14C fixed at their front endsto the shafts =12 by set screws 45 have their rear ends disposed below the ends of the bar 38.

Uuwardlv and rearwardl 1 extendin arms 46 are secured at their-lower ends to the shafts d2 by set screws 17 and are provided with upper angular terminals 18 contacting with the swells or binders fiof the shuttle boxes 3. Springs 19 mounted on the shafts 42; connected to collars 50 on the shafts, and contacting with the under side of the lay 2, exerts constant downward pressure on'the arms 44 and constant rearward pressure on the arms 16 in order to maintain the former out of contact with the bar 38 and the latter in contact with the swells or binders 5 of the shuttle boxes 3.

When the arms 4:6 are simultaneously.

bar is connected to the rear end of the lever 22, this movement of these arms will swing A boss 29 A bar 38 ex-- tending longitudinally-of the lay 2 is pivthe lever 22 in a direction to depress the front end and carry the hook 36 into the path of the free end of the lever 15, with the result that the hook 36 will contact with and actuate the lever'1'5 during the backward movement of the lay 2. This actuates the braking mechanism of which the shaft 6 forms a part and results in the hanging off of the loom. As the bar 38 is pivoted to the'rod-.31- the actuation of one set of the arms let and46 in the manner just set forth will not result in the depressing of the front end of the lever 22. Due thereto and since the lever 22 is normally held in inactive position by the spring 35 there is no possibility ofthe hanging off of the loom during the normal travel of the shuttles.

From the foregoing description, taken in connection wit-h the accompanying draw-- ings, it should be apparent that the smash preventer will not bang off the loom during the normal operation thereof, that it will immediately bang off the loom whenever the respective shuttle boxes simultaneously contain a shuttle, and that the loom will be hanged off when the lay is back. While I have described the principle of operation of the invention, together with the device which I now consider to be the best embodiment thereof, I desire to have it understood that the device shown is merely illustrative. and that such changes may be made when desired as are within the scope of the invention as claimed.

hat is claimed is A smash preventer comprising, in combination with the breast beam, the lay, the shuttle'boxes and the brake operating shafi of a loom, an arm fixed to the shaft, a bracket fixed to the breast beam adjacent the arm, a lever pivoted to the bracket and contacting with the arm, a lever pivoted to the lay and adapted when in one position to latch with the first named lever to effect the bang ing oil of the loom, a boss secured to the lay, a vertical rod slidable in the boss and pivotally connected to the second lever, a spring exerting a downward tension on the rod, means adapted to limit the movement of the rod underthe influence of the spring, a bar pivoted between its ends to the rod, and means carried by the lay and under the control of the shuttle boxes and contacting with the bar, said means being adapted to effect the movement of the second lever into position for engagement with the first when each shuttle box contains a shuttle.

' In testimony whereof I aflix my signature.

ERNEST E. LAMBERT. 

